Question

遍历form窗体上的所有Button，并可以得到其中任何一个

有好多个按钮。。难道也要写if(btn.Text == "确定")
那么多个if

Answer 1

foreach (Control c in this.Controls)
{
//第一种情况：button在窗体上
Button btn = c as Button;
if (btn != null)
{
if (btn.Text == "确定")
{
//do sth.
}
}

//第二种情况：Button在panel等容器里面
Panel p = c as Panel;
if (p != null)
{
foreach (Control cc in p.Controls)
{
Button c_btn = c as Button;
if (c_btn != null)
{
if (c_btn.Text == "确定")
{
//do sth.
}
}

}
}
}